1. Tiling Spaces: Quasicrystals & Geometry;Bragg,2014
2. Algebraic theory of Penrose's non-periodic tilings of the plane;de Bruijn;I. Math. Proc. A,1981
3. Algebraic theory of Penrose's non-periodic tilings of the plane;de Bruijn;II. Indagat. Math.,1981
4. Polarized plate tectonics;Doglioni;Adv. Geophys.,2015
5. On the Earth-Vortex, Echelon Faults and Allied Phenomena;Fujiwhara,1933